There are four geographic modes of speciation in nature, based on the extent to which speciating populations are isolated from one another: allopatric, peripatric, parapatric, and sympatric. Speciation may also be induced artificially, through animal husbandry, agriculture, or laboratory experiments.
Post 2. @Anon91339: A ricer is also a legitimate kitchen tool. You can find references to ricers online, or in any culinary dictionary. My mother used to use a ricer to squeeze pulp from seeds when making plum jam.There are photos online. Ricers as kitchen tools predate automobile Ricers and probably the automobile itself.ost 2. @Anon91339: A ricer is also a legitimate kitchen tool. You can find references to ricers online, or in any culinary dictionary. My mother used to use a ricer to squeeze pulp from seeds when making plum jam.
A Potato Ricer is a long handled device with a small can or cylinder at one end and a plunger attached to the other. The cylinder end has large holes through which cooked potatoes or other vegetables are pushed by the opposing plunger. They are sold as in 1 and 2 cup sizes.y design potato ricers create a smooth puree and keep skins from getting into the finished product. Potato ricers are best used for cooked tubers, squash and dense fruit like apples. They will not work well with tomatoes or other juicy fruits.